/* Ephemeral project page.
   Hero and navigation come from installation-scroll.css and are untouched here.
   Artwork images keep the pinned full-screen slider; process images stay small. */

body.ephemeral-page {
  --eph-text: rgb(245, 242, 237);
  --eph-muted: rgba(245, 242, 237, 0.56);
  --eph-faint: rgba(245, 242, 237, 0.32);
  --eph-line: rgba(245, 242, 237, 0.14);
  --eph-ember: #c98559;
  --eph-band: #12100e;
  --eph-serif: "Sorts Mill Goudy", Georgia, "Times New Roman", serif;
  --eph-sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.eph-label {
  margin: 4px 0 0;
  color: var(--eph-muted);
  font-family: var(--eph-sans);
  font-size: 9px;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ── Hero film (Full Ignition, 2021) ───────────────────────── */

.eph-hero-film { background: var(--project-bg); }

.eph-hero-film video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  animation: installationHeroIn 1050ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@media (max-width: 900px) {
  /* Keep the whole 2.4:1 frame on phones and fade its edges into the page black. */
  .eph-hero-film {
    display: flex;
    align-items: center;
  }

  .eph-hero-film video {
    height: auto;
    aspect-ratio: 12 / 5;
    -webkit-mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent);
    mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 78%, transparent);
  }
}

@media (max-width: 900px) and (orientation: landscape) {
  .eph-hero-film video {
    height: 100%;
    aspect-ratio: auto;
    -webkit-mask-image: none;
    mask-image: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .eph-hero-film video { animation: none; opacity: 1; }
}

/* ── Artwork slider ─────────────────────────────────────────── */

body.ephemeral-page .eph-artworks .gallery-track {
  padding-left: 26vw;
}

.eph-project-data {
  flex: 0 0 auto;
  width: min(30vw, 440px);
  align-self: center;
}

.eph-project-data dl { margin: 0; }

.eph-project-data dl > div {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 22px;
  padding: 7px 0;
}

.eph-project-data dt,
.eph-project-data dd {
  margin: 0;
  font-family: var(--eph-serif);
  font-size: clamp(11px, 0.9vw, 14px);
  font-weight: 400;
  line-height: 1.38;
}

.eph-project-data dt { color: var(--eph-muted); }
.eph-project-data dd { color: var(--eph-text); }

.eph-phase-card {
  flex: 0 0 auto;
  width: min(28vw, 420px);
  margin-left: clamp(40px, 6vw, 110px);
  padding-top: 18px;
  border-top: 1px solid var(--eph-line);
  align-self: center;
  color: var(--eph-text);
}

.eph-phase-card p,
.eph-phase-card h2 { margin: 0; }

.eph-phase-index {
  color: var(--eph-ember);
  font-family: var(--eph-sans);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eph-phase-year {
  margin-top: 26px !important;
  font-family: var(--eph-sans);
  font-size: clamp(64px, 8.4vw, 150px);
  font-weight: 500;
  line-height: 0.8;
  letter-spacing: -0.075em;
  white-space: nowrap;
}

.eph-phase-title {
  margin-top: 22px !important;
  font-family: var(--eph-serif);
  font-size: clamp(24px, 2.3vw, 38px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.01em;
}

.eph-phase-tags {
  margin-top: 14px !important;
  color: var(--eph-muted);
  font-family: var(--eph-sans);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eph-phase-text {
  max-width: 34ch;
  margin-top: 28px !important;
  color: var(--eph-muted);
  font-family: var(--eph-sans);
  font-size: clamp(12px, 0.92vw, 15px);
  font-weight: 400;
  line-height: 1.55;
}

.eph-artworks .gallery-item video {
  display: block;
  width: 100%;
  height: min(70vh, 780px);
  object-fit: cover;
  background: #000;
}

.eph-artworks .gallery-item figcaption {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-top: 12px;
  color: var(--eph-muted);
  font-family: var(--eph-sans);
  font-size: 9px;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eph-sound {
  margin-left: 14px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--eph-text);
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.eph-sound[aria-pressed="true"] { color: var(--eph-ember); }

/* Phase timeline laid over the slider's progress line. */
.eph-timeline {
  position: absolute;
  left: 42px;
  right: 42px;
  bottom: 31px;
  z-index: 9;
  height: 0;
  pointer-events: none;
}

.eph-timeline button {
  position: absolute;
  left: calc(var(--at, 0) * 100%);
  bottom: 12px;
  padding: 0 0 0 9px;
  border: 0;
  background: none;
  color: var(--eph-faint);
  font-family: var(--eph-sans);
  font-size: 9px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
  pointer-events: auto;
  transition: color 320ms ease;
}

.eph-timeline button::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -12px;
  width: 1px;
  height: 21px;
  background: currentColor;
}

.eph-timeline button b {
  margin-right: 6px;
  font-weight: 400;
  color: inherit;
}

.eph-timeline button:hover { color: var(--eph-muted); }
.eph-timeline button.is-active { color: var(--eph-text); }
.eph-timeline button.is-active b { color: var(--eph-ember); }

@media (min-width: 901px) and (prefers-reduced-motion: no-preference) {
  /* Dim everything except the image nearest the centre of the screen. */
  body.ephemeral-page .eph-artworks .gallery-item,
  body.ephemeral-page .eph-artworks .gallery-item.is-active {
    opacity: 0.38;
    transform: translate3d(0, 22px, 0) scale(0.985);
  }

  body.ephemeral-page .eph-artworks .gallery-item.is-current {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

@media (min-width: 901px) {
  /* Portrait images share the landscape height so captions clear the timeline. */
  body.ephemeral-page .eph-artworks .gallery-item.tall img { height: min(70vh, 780px); }
}

/* ── Statement ──────────────────────────────────────────────── */

.eph-statement {
  display: grid;
  grid-template-columns: minmax(120px, 0.5fr) minmax(280px, 0.9fr) minmax(300px, 1fr);
  gap: clamp(28px, 6vw, 110px);
  align-items: start;
  padding: 16vh 6vw clamp(76px, 10vh, 136px);
  background: var(--project-bg);
  color: var(--eph-text);
}

.eph-quote { margin: 0; }

.eph-quote p {
  margin: 0;
  font-family: var(--eph-serif);
  font-size: clamp(28px, 3.35vw, 54px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.eph-quote cite {
  display: block;
  margin-top: 22px;
  color: var(--eph-muted);
  font-family: var(--eph-serif);
  font-size: clamp(16px, 1.3vw, 20px);
  font-style: normal;
  line-height: 1.35;
}

.eph-statement-copy { max-width: 620px; }

.eph-statement-copy p {
  margin: 0;
  color: rgba(245, 242, 237, 0.84);
  font-family: var(--eph-sans);
  font-size: clamp(13px, 1vw, 17px);
  font-weight: 400;
  line-height: 1.55;
}

.eph-statement-copy p + p { margin-top: 1.25em; }

/* ── Process (low emphasis) ─────────────────────────────────── */

.eph-process {
  padding: clamp(64px, 10vh, 130px) 6vw clamp(90px, 13vh, 170px);
  background: var(--project-bg);
  color: var(--eph-text);
}

.eph-process-head,
.eph-process-phase {
  display: grid;
  grid-template-columns: minmax(120px, 0.5fr) minmax(280px, 0.9fr) minmax(300px, 1fr);
  gap: clamp(28px, 6vw, 110px);
}

.eph-process-head { margin-bottom: clamp(28px, 5vh, 56px); }

.eph-process-head h2 { margin: 4px 0 0; }

.eph-process-head p {
  grid-column: 2 / -1;
  margin: 0;
  color: var(--eph-muted);
  font-family: var(--eph-sans);
  font-size: clamp(12px, 0.92vw, 15px);
  font-weight: 400;
  line-height: 1.55;
}

.eph-process-phase {
  padding: 22px 0 34px;
  border-top: 1px solid var(--eph-line);
}

.eph-process-meta {
  display: grid;
  gap: 6px;
  align-content: start;
  margin: 0;
  color: var(--eph-muted);
  font-family: var(--eph-sans);
  font-size: 9px;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eph-process-meta span:first-child { color: var(--eph-ember); }

.eph-process-notes p {
  margin: 0;
  color: rgba(245, 242, 237, 0.66);
  font-family: var(--eph-sans);
  font-size: clamp(12px, 0.92vw, 15px);
  font-weight: 400;
  line-height: 1.6;
}

.eph-process-notes p + p { margin-top: 1em; }

.eph-process-images {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 14px;
}

.eph-process-images figure {
  width: clamp(96px, 8.4vw, 150px);
  margin: 0;
}

.eph-process-images a { display: block; }

.eph-process-images img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: 0.82;
  transition: opacity 220ms ease;
}

.eph-process-images a:hover img,
.eph-process-images a:focus-visible img { opacity: 1; }

.eph-process-images figcaption {
  margin-top: 8px;
  color: var(--eph-faint);
  font-family: var(--eph-sans);
  font-size: 8px;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ── Document: BABEL's portfolio reader, recoloured ─────────── */

.eph-portfolio {
  --portfolio-vertical-space: clamp(110px, 15vh, 190px);
  padding: var(--portfolio-vertical-space) 6vw;
  overflow: hidden;
  background: var(--eph-band);
  color: var(--eph-text);
}

.eph-portfolio-pages {
  display: flex;
  width: auto;
  gap: clamp(20px, 3vw, 50px);
  margin-right: calc(-1 * 6vw);
  padding: 0 6vw 14px 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: rgba(245, 242, 237, 0.3) transparent;
}

.eph-portfolio-pages::-webkit-scrollbar { height: 4px; }
.eph-portfolio-pages::-webkit-scrollbar-thumb { background: rgba(245, 242, 237, 0.3); }

.eph-portfolio-pages figure {
  flex: 0 0 min(78vw, 1440px);
  width: min(78vw, 1440px);
  margin: 0;
  scroll-snap-align: start;
}

.eph-portfolio-pages img {
  display: block;
  width: 100%;
  height: auto;
  background: #1d1a17;
}

.eph-portfolio-pages figcaption {
  margin-top: 10px;
  color: rgba(245, 242, 237, 0.5);
  font-family: var(--eph-sans);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-align: right;
  text-transform: uppercase;
}

body.ephemeral-page .eph-portfolio .installation-documentation {
  min-height: auto;
  padding: 0 6vw;
}

body.ephemeral-page .eph-portfolio .installation-documentation a {
  color: rgba(250, 249, 246, 0.58);
  font-family: var(--eph-sans);
  font-size: 9px;
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ── Mobile ─────────────────────────────────────────────────── */

@media (max-width: 900px) {
  body.ephemeral-page .eph-artworks .gallery-track { padding-left: 0; }

  .eph-project-data,
  .eph-phase-card {
    width: auto;
    margin-left: 0;
  }

  .eph-project-data { padding: 30px 4px 0; }

  .eph-project-data dl > div { grid-template-columns: 76px 1fr; gap: 16px; }

  .eph-project-data dt,
  .eph-project-data dd { font-size: 14px; }

  .eph-phase-card { margin-top: 40px; padding: 18px 4px 0; }

  .eph-phase-year { margin-top: 20px !important; font-size: clamp(56px, 18vw, 96px); }

  .eph-phase-title { font-size: clamp(24px, 7vw, 32px); }

  .eph-phase-text { max-width: none; font-size: 14px; }

  .eph-artworks .gallery-item video {
    height: auto;
    aspect-ratio: 16 / 9;
  }

  .eph-artworks .gallery-item figcaption {
    flex-wrap: wrap;
    gap: 6px 18px;
    margin-top: 10px;
    padding: 0 4px;
  }

  .eph-timeline { display: none; }

  .eph-statement {
    display: block;
    padding: 105px 18px 84px;
  }

  .eph-quote { margin: 78px 0; }
  .eph-quote p { font-size: clamp(34px, 10.5vw, 51px); }
  .eph-statement-copy p { font-size: 14px; line-height: 1.58; }

  .eph-process { padding: 40px 18px 96px; }

  .eph-process-head,
  .eph-process-phase { display: block; }

  .eph-process-head p { margin-top: 18px; font-size: 14px; }

  .eph-process-phase { padding: 18px 0 30px; }

  .eph-process-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    margin-bottom: 18px;
  }

  .eph-process-notes p { font-size: 14px; }

  .eph-process-images:not(:empty) { margin-top: 22px; }

  .eph-process-images figure { width: calc((100% - 28px) / 3); }

  .eph-portfolio {
    --portfolio-vertical-space: 105px;
    padding-left: 14px;
    padding-right: 14px;
  }

  .eph-portfolio-pages {
    gap: 18px;
    margin-right: -14px;
    padding-right: 14px;
  }

  .eph-portfolio-pages figure {
    flex-basis: 88vw;
    width: 88vw;
  }

  body.ephemeral-page .eph-portfolio .installation-documentation { padding: 34px 18px 42px; }
}

@media (prefers-reduced-motion: reduce) {
  .eph-timeline button,
  .eph-process-images img { transition: none; }
}

/* Navigation is fully transparent while it sits over the hero film. */
body.ephemeral-page.eph-nav-over-hero .site-nav {
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
}
body.ephemeral-page .site-nav {
  transition: background-color 300ms ease, backdrop-filter 300ms ease;
}